H3C GB0-372-ENU最新問題集[2024]高得点を掴み取れ
GB0-372-ENU問題集Fast2test100%合格率保証
質問 # 213
To query the CPU utilization of a device through SNMP, which of the following information should the network management application know before executing the query action? (Multiple choice)
- A. Management IP address of the device
- B. SNMP community attributes of the device
- C. Device CPU utilization OID
- D. Instance ID of device CPU utilization
正解：A、B、C、D
質問 # 214
A loop in the LAN may cause? (Multiple choice)
- A. MAC address learning error
- B. The end rate changes
- C. The port duplex mode changes
- D. Broadcast Storm
正解：A、D
質問 # 215
Hosts PCA, PCB and PCC are connected to GigabitEthernet1/0/1, Ethernet1/0/2 and Ethernet1/0/3 ports of switch SWA respectively, and their addresses are in the same network segment. Configure
[SWA] vlan 10
[SWA-vlan10] port ethernet 1/0/1
[SWA-vlan10] quit
[SWA] vlan 20
[SWA-vlan20] port ethernet 1/0/2
[SWA-vlan20] quit
[SWA] vlan 30
[SWA-vlan30] port ethernet 1/0/3
[SWA-vlan30] quit
[SWA] interface ethernet 1/0/1
[SWA-Ethernet1/0/1] port link-type hybrid
[SWA-Ethernet1/0/1] port hybrid vlan 10 30 untagged
[SWA-Ethernet1/0/1] quit
[SWA] interface ethernet 1/0/2
[SWA-Ethernet1/0/2] port link-type hybrid
[SWA-Ethernet1/0/2] port hybrid vlan 20 30 untagged
[SWA-Ethernet1/0/2] quit
[SWA] interface ethernet 1/0/3
[SWA-Ethernet1/0/3] port link-type hybrid
[SWA-Ethernet1/0/3] port hybrid vlan 10 20 30 untagged
what can we learn from the above information? (Multiple choice)
- A. The three PCs cannot communicate with each other
- B. PCA and PCB can communicate with each other
- C. PCA and PCC can communicate with each other
- D. PCB and PCC can communicate directly
- E. The configuration command is incorrect
正解：C、D
質問 # 216
Contrast the calculation convergence of RSTP and STP. Which of the following statements is correct? (Multiple choice)
- A. Compared with STP, STP defines a fast switch mechanism for root ports, which allows Altemate to quickly become the new root port when there is a port failure.
- B. Compared with STP, RSTP defines a fast switch mechanism for the root port, so that the port connected to the host can quickly enter the forwarding state
- C. Compared with STP, RSTP defines a fast switch mechanism for designated ports, which allows the designated port to enter the forwarding state without waiting for twice the Forward Delay time.
- D. If STP wants to shorten the convergence time, it can only configure a shorter FORWARD Delay time, but this will affect the stability of the network.
正解：A、B、C、D
質問 # 217
Which of the following statements about the intercommunication between Sub VLANs in Super VLAN technology is correct?
- A. The host IP addresses in different Sub VLANs belong to the same network segment, and they can communicate directly with each other through Layer 2 forwarding.
- B. The host IP addresses in different Sub VLANs belong to the same network segment, but due to the isolation of Sub VLAN, the Sub VLANs cannot communicate with each other.
- C. Hosts in different Sub VLANs are isolated at Layer 2, and can communicate at Layer 3 through the local proxy ARP technology of the Super VLAN interface.
- D. Hosts in different Sub VLANs are isolated at Layer 2, and can communicate at Layer 3 through the common proxy ARP technology of the Super VLAN interface.
正解：C
質問 # 218
Which of the following belongs to the access layer function? (Multiple choice)
- A. High-speed packet switching
- B. Access security control
- C. Has a large number of interfaces for connecting to end-user computers
- D. Complex routing strategies
正解：B、C
質問 # 219
Which of the following statements about the PIM SM joining process is correct? (Multiple choice)
- A. When there are no receivers of multicast group G locally in the DR, the DR will send a prune message to the upstream router.
- B. Both PIMSM and PIM DM have pruning veto processes
- C. As long as the DR has a receiver of multicast group G locally, the DR will periodically send a join message to the upstream.
- D. If there is still a receiver in the shared network segment under the interface where the upstream router receives the prune message, the receiver will send a group join message
正解：A、B、C、D
質問 # 220
In the switching network shown in the figure, VLAN10 is set as Super VLAN on switch SWA, VLAN2 and VLAN3 are Sub VLANs of VLAN10, port Ethernet1/03 is T port, PVID is VLAN1, and all VLANs are allowed to pass; after completing all configurations on switch SWA, which of the following can be determined that the physical ports included in VLAN10 on switch SWA?
- A. Does not contain any ports
- B. Ethernet1/0/3
- C. Ethemet1/0/2
- D. Ethernet1/0/1
正解：A
質問 # 221
As the network scale expands, the management work may become more and more onerous.
Therefore, in the early stage of network construction, network administrators hope to adopt various technologies to reduce the workload of network management. The most commonly used methods are to simplify the network structure and unify network equipment. Which of the following technologies belong to the technology of simplifying the network structure? (Multiple choice)
- A. Cluster Technology
- B. 10 Gigabit Ethernet
- C. SNMP protocol
- D. Stacking Technology
正解：A、D
質問 # 222
Which of the following statements about EVPN are correct? (Multiple choice)
- A. EVPN uses 5 types of routing to advertise MAC/IP and other information
- B. EVPN VXLAN tunnels are automatically established through type 3 routing
- C. EVPN is implemented by extending lSIS
- D. EVPN can automatically generate routing entries based on virtual machine ARP
正解：B、D
質問 # 223
A router running PIM-DM will periodically send Hello messages to discover neighbors and establish and maintain neighbor relationships. Which of the following descriptions of Hello messages are correct?
(Multiple choice)
- A. When electing a DR, the router with a higher Hello message priority will become the DR
- B. The router sends a PIM Hello in multicast mode, with the destination address being 224.0.0.13
- C. When the router runs IGMPV2, it elects a DR for the shared network segment through PIMHello messages, and the DR serves as the Querier of IGMP.
- D. All PIM routers are members of the multicast group 224.0.0.13
- E. If the Hello messages have the same priority, the router with the larger interface IP address will become the DR
正解：A、B、D、E
質問 # 224
The customer's LAN switch SWA is connected to SWB via GigabitEthernet 2/0/1 and to SWC via GigabitEthernet 2/0/2 and the SWA switch has the following configuration:
[SWA] smart-link group 1
[SWA-smlk-group1] protected-vlan reference-instance 0 to 32
[SWA-smlk-group1] port gigabitethernet 2/0/1 slave
[SWA-smlk-group1] port gigabitethernet 2/0/2 master
[SWA-smlk-group1] flush enable control-vlan 10
If the interconnection interfaces of switches SWA, SWB, and SWC allow all VLANs to pass, what can we learn from the above information?
- A. If the Gigabitethernet 2/0/2 port fails, the SWA switch will broadcast flush messages in all VLANs.
- B. Normally, the SWA switch traffic will be upstream through Gigabitethernet 2/0/1
- C. If the GigabitEthernet 2/0/1 port fails, the SWA switch will broadcast flush messages in all VLANs.
- D. Under normal circumstances, SWA switch traffic will be upstream through Gigabitethernet 2/0/2
正解：D
質問 # 225
Regarding the comparison of BPDU formats between RSTP and STP, which of the following statements are correct? (Multiple choice)
- A. In the RST BPDU, the P/A flag in the Flags field is used for the root port fast switching mechanism
- B. The TCA bit is not used in the topology change process defined by RSTP.
- C. In the RST BPDU, all 8 bits of the Flags field have actual meanings
- D. RSTP does not define a separate BPDU type for the topology change process
正解：B、C、D
質問 # 226
Regarding TC protection, which of the following is correct? (Multiple choice)
- A. After receiving the TC-BPDU message, the switch will delete the MAC address table entry.
- B. The system will monitor whether the number of TC-BPDU messages received during the time period is greater than the threshold. If it is greater than the threshold, the device will perform another address table entry deletion operation after the time expires. This can avoid frequent deletion of forwarding address table entries.
- C. After the TC protection function is enabled, the number of times the device can delete address entries immediately after receiving the TC-BPDU message within 10 seconds can be controlled by the user.
- D. TC protection is configured in system view
正解：A、B、C、D
質問 # 227
A customer wants to deploy 802.1X in the LAN to improve access security. At the same time, the customer wants to use the port security feature to temporarily close the port for 5 minutes to prevent illegal users from accessing the network. Which of the following features can be used to achieve this?
- A. Trap Features
- B. InstrusionProtection Features
- C. NeedToKnow feature
- D. ntk temporary characteristics
正解：B
質問 # 228
Two routers are connected through a LAN to form a VRRP backup group. The configuration on each interface is as follows:
[RTA-GigabitEthernet1 /0] display this
IP address 192.168.0.252 255.255.255.0
Vrrp vrid 1 virtual-ip 192.168.0.254
[RTB-GigabitEthernet1/0] display this
IP address 192.168.0.253 255.255.255.0
Vrrp vrid 1 virtual-ip 192.168.0.254
what can we learn from the above information?
- A. RTA and RTB cannot elect a master router for the backup group
- B. RTA and RTB are both in VRRP Master state
- C. RTA is the Master router of the backup group
- D. RTB is the Master router of the backup group
正解：D
質問 # 229
Which of the following elements may be included in the MAC address table of a switch? (Multiple choice)
- A. MAC address
- B. Port number
- C. VLANID
- D. Aging time
- E. IP address
正解：A、B、C、D
質問 # 230
Which of the following descriptions about secure management networking are correct?
- A. Hardware load balancing is mounted on the gateway
- B. Traffic between firewalls and load balancers is directly interconnected through the secure intranet without going through a gateway
- C. Hardware firewall mounted on the gateway
- D. Security devices and gateways communicate with each other through VXLAN
正解：A
質問 # 231
Two routers RTA and RTB are connected together through a LAN to form a VRRP backup group.
The IP address of the host HostA in the LAN is 192.168.0.1, and the gateway MAC address learned by HostA is 0000-5e00-0105. What can we learn from the above information? (Multiple choice)
- A. The backup group uses real MAC mode
- B. Backup group uses virtual MAC mode
- C. The backup group vrid is 4
- D. The backup group vrid is 5
正解：B、D
質問 # 232
Regarding the configuration of timers in the spanning tree protocol, which of the following is correct? (Multiple choice)
- A. MaxAge should be adjusted to the minimum value, which can shorten the aging time of BPDU and detect link failures in time.
- B. It is not recommended to manually configure Hello Forward Delay and Max Age. The switch will automatically set a better value for the timer based on the network diameter value.
- C. HelloTime should be adjusted to the maximum value and Forward Delay should be adjusted to the minimum value. This can reduce the number of Hello messages in the network and the port can enter the forwarding state as soon as possible.
- D. An appropriate Helloinme value can reduce the cost of spanning tree calculation while enhancing the robustness of the spanning tree. A value that is too large or too small will affect the spanning tree calculation and the stability of the network.
正解：B、D
質問 # 233
Which of the following statements about the BPDU format of MSTP is correct? (Multiple choice)
- A. If the MST region is regarded as a switch running RSTP logically, the CIST external path cost is equivalent to the root path cost of the RSTP switch.
- B. To calculate CST, only the value of the RSTBPDU field is required
- C. If the MST region is regarded as a switch running RSTP logically, the CIST region root ID is equivalent to the designated bridge ID of the RSTP switch. Usually, this ID is the smallest bridge ID in the MST region.
- D. The MSTP BPDU consists of the RSTBPDU field and the MST-specific field.
正解：A、B、D
質問 # 234
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